Gagger



Sept-30, 1930. e. L. SOUTHARD GAGGER Filed April 8, 1929 ATTORN EY I I r enonen n sonr'irzinn, on nnnnnnn", p l sy asig if i i L i GAcGE 'E i n h Application filed. April 8, i929. V I sen 353,559. i H This invention relates to a device for use caused by variouslcircumstances' suchas pass in the foundry art and more especially for ing the'bar through the rolls at too low a1 use in flasks for foundry molds; its function temperatureat the final pass or by a slight is to retain the sand in the drag, cheek-piece undersize in the bar at the last or finishing 5 or cope of the mold or in: either of them in pass of samethrough the rolls; 55 which the sand mightdrop out or away from ltcwill be noted that the difference in the the mold, ortend to do so because of lack of formsofgthe cornersshown-jin Figs.2, 8 and sufficient support. V 4 is slight; aridl donotl Wish to designate I am aware that gaggers formed from any particular. one of themas the preferred i I 10 twisted steel are not broadly new, but my im' form, but customers who express a prefer- 60 provedgagger here shown and described reence in respect to the shape of the corner lates especially to a new and-eflicient crossmay have their orders filled accordingly.

sectional shape which is such that its ver- The particular inventive idea embodied in tical, sand-sustained leg is embedded and my new form of gagger resides'in the matretained in the sand with greater tenacity, ter of-forming itfrom a triangular bar of and consequently its horizontal or san'd-sus-, twisted steel. I r taining leg has a greaterretaining andsus- In making known the particular advantaining power than any "form of: gagger tage of said triangular form let'it first be which has heretofore been produ'cedrto ,pronoted that the efiiciency of a gagger depends vide a gagger having such qualities is the prlmarilyupon the tenacity of. grip of the i hereof and iniwhich: V

' the gagger.

object of this invention. packed sand upon the vertical leg of the gag- The construction wherebyI amenabled to ger; this determines its sustaining capacity attain said objects is clearly illustrated in the for the sand that is super-posed upon the toe accompanying drawings 'whichform a part of the gagger. Said tenacity of hold of the Fig. 1 is an elevation of a gagger embodydensity of the sand and the quantity thereof ing my inventive idea, that would be broached out by drawing the Figs. 2, 3 and 4 arev transverse sections of vertical leg out of the sand longitudinally a triangular twistedvsteel 'barfrom which without permitting it to turn, as its spiral vertical leg in the sand depends upon the 0 my improved gagger ismade. form or twist would tend to cause it to do.

Figs. 5, 6 and? are described farther on From an, inspection of Figs. 2, Sand i'it iwill in this specification where their particular he noted from the area of the circumscribed object,.respectively, appears. circles and the relative areas of the respec- My improved gagger comprises the leg 1' tive bars,-that the amount of sand that would 5 which usually is placed in a vertical position be broached outwould be considerabl'y'great in a foundry flask and is sustained and reer thanit would be were the inscribedbar tainedin such position by being firmly emsquare or had the shape of nearly any other bedded in the sand of themold; it also com regular polygon of twisted construction.

1 prises a toe 2, which usually occupies a hori- For the purpose of illustratingthe greater 0 zontal position within the wall of, near to body of sandthat Wouldbe so broached from 0 and along the cavity or matrix face of the. the mold by a triangular bar than bya square mold, and sustains the sandfrom dropping bar: both of which could be circumscribed by into the cavity, also from the parting face of a circle of exactly the same diameter, I have the mold; the corner 3 is termed the heel of incorporated in the drawings Figs. 5, 6 and i 7. Fig. 5 indicates a triangular bar, Fig.6

The sectional views are given for the purindicates a square bar and Fig. 7 is a compose of indicating various forms of corners posite of said two bars.

of the bar; these variations may be either From an inspectlon of thesethree figures 1t purposely caused, as by forming the groove will be noted that considerably more of the y inthe roll to so shape them, orthey may be inside of the circumscribed circle of Fig. "5 106 is occupied by cross hatching, which corresponds to tamped sand, than is so occupied in Fig. 6. Fig. 7 indicates this difierence clearly.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A gagger for use in foundry molds comprising a metallic twisted bar of triangular cross section formed into an L shaped element for the purpose specified.

2. A gagger for use in retaining sand within the flask of a foundry mold comprisinga metallic bar of triangular cross section, twisted and formed into an L shaped element so that one leg thereof may be embedded within the sand of the mold in a vertical position and be so retained by having the sand tamped firmly thereabout, the other leg eX- tending in a horizontal position adjacent a horizontally extending face of the mold so as to support the sand forming said face.

In testimony whereof I alfix my signature.

GEORGE L. SOUTHARD. 

